diff --git a/src/Fengling.Activity.Domain/Aggregates/Campaigns/Campaign.cs b/src/Fengling.Activity.Domain/Aggregates/Campaigns/Campaign.cs
index 49f63fe..9a8faa3 100644
--- a/src/Fengling.Activity.Domain/Aggregates/Campaigns/Campaign.cs
+++ b/src/Fengling.Activity.Domain/Aggregates/Campaigns/Campaign.cs
@@ -1,9 +1,10 @@
-namespace Fengling.Activity.Domain.Aggregates.Campaigns;
-
 using Fengling.Activity.Domain.Enums;
 using Fengling.Activity.Domain.Events.Campaigns;
 using Fengling.Activity.Domain.ValueObjects;
 
+namespace Fengling.Activity.Domain.Aggregates.Campaigns;
+
+
 public class Campaign : Entity<CampaignId>, IAggregateRoot
 {
     public TenantId TenantId { get; private set; } = null!;
diff --git a/src/Fengling.Activity.Web/Program.cs b/src/Fengling.Activity.Web/Program.cs
index f496bcb..9847b38 100644
--- a/src/Fengling.Activity.Web/Program.cs
+++ b/src/Fengling.Activity.Web/Program.cs
@@ -58,7 +58,11 @@ try
     });
 
     builder.Services.AddMediatR(cfg =>
-        cfg.RegisterServicesFromAssemblies(Assembly.GetExecutingAssembly())
+        cfg.RegisterServicesFromAssemblies(
+            Assembly.GetExecutingAssembly(),
+            typeof(Fengling.Activity.Domain.Aggregates.Campaigns.Campaign).Assembly,
+            typeof(Fengling.Activity.Infrastructure.Repositories.CampaignRepository).Assembly
+        )
             .AddCommandLockBehavior()
             .AddKnownExceptionValidationBehavior()
             .AddUnitOfWorkBehaviors());